Current in a Battery: Solving w/ Kirchoff's Law

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Homework Statement


A dead battery is charged by connecting it to the live battery of another car with jumper cables. Assume that V = 5.5 V and R = 0.50 .

What is the current of the starter and the current of the dead battery?


Homework Equations


I=V/R, I1=I2+I3, basically Kirchoff's law...



The Attempt at a Solution


I thought for finding the current of the starter all, you had to do was use I=V/R, so it would 5.5/.50, but it came out wrong :(. I then tried multiplying the two resistances together..still no luck, and did V/R..still no luck, however I found that the answer comes out to be 170-171, and how I have no idea how to get that. I also tried finding the current and then subtracting it from the intial voltage and divide by the intial resistance..when I did that, I got somewhere in the 100's, but no where near the answer. I came up with millions of techniques, but none worked. Can someone help? I'm really stuck on this.

DIAGRAM BELOW FOR REFERENCE..
 
Attachments
  • Circuit schematic of a live 12 V battery with 0.01 Ω internal resistance, a dead battery with internal resistance R and emf V, and a 0.06 Ω starter, all connected in parallel by jumper cables.
    p28-25alt.gif
    4.4 KB · Views: 542
You've got 3 unknowns, which are [tex]I_1, I_2, I_3[/tex]

Now search 3 equations that can solve your unknowns.